Oval Definition:	oval:org.mitre.oval:def:10394
Revision Date: 2013-04-29 Version: 12 Title: The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function. Description: The Linux kernel 2.6.20 and 2.6.21 does not properly handle an invalid LDT segment selector in %cs (the xcs field) during ptrace single-step operations, which allows local users to cause a denial of service (NULL dereference and OOPS) via certain code that makes ptrace PTRACE_SETREGS and PTRACE_SINGLESTEP requests, related to the TRACE_IRQS_ON function, and possibly related to the arch_ptrace function. Family: unix Class: vulnerability Status: ACCEPTED Reference(s): CVE-2007-3731 Platform(s): CentOS Linux 5 Oracle Linux 5 Red Hat Enterprise Linux 5 Product(s): Definition Synopsis RHEL5, CentOS5 or Oracle Linux 5 The operating system installed on the system is Red Hat Enterprise Linux 5 OR The operating system installed on the system is CentOS Linux 5.x OR Oracle Linux 5.x AND Configuration section kernel-kdump is earlier than 0:2.6.18-8.1.15.el5 OR kernel-xen is earlier than 0:2.6.18-8.1.15.el5 OR kernel-headers is earlier than 0:2.6.18-8.1.15.el5 OR kernel-kdump-devel is earlier than 0:2.6.18-8.1.15.el5 OR kernel-xen-devel is earlier than 0:2.6.18-8.1.15.el5 OR kernel is earlier than 0:2.6.18-8.1.15.el5 OR kernel-PAE-devel is earlier than 0:2.6.18-8.1.15.el5 OR kernel-devel is earlier than 0:2.6.18-8.1.15.el5 OR kernel-PAE is earlier than 0:2.6.18-8.1.15.el5 OR kernel-doc is earlier than 0:2.6.18-8.1.15.el5 OR kernel-debuginfo-common is earlier than 0:2.6.18-8.1.15.el5
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